Dec 17 14:01:28.219 INFO checking tcsc/asyncho against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 14:01:28.219 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/tcsc/asyncho:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 14:01:28.729 INFO [stdout] fcb2272790536e5293503f273d9e82d757e452aab6bb3792a15aa6b4fa2218d1
Dec 17 14:01:28.738 INFO running `"docker" "start" "-a" "fcb2272790536e5293503f273d9e82d757e452aab6bb3792a15aa6b4fa2218d1"`
Dec 17 14:01:30.433 INFO [stderr]     Checking futures v0.1.13
Dec 17 14:01:30.433 INFO [stderr]     Checking memchr v1.0.1
Dec 17 14:01:30.433 INFO [stderr]     Checking iovec v0.1.0
Dec 17 14:01:30.433 INFO [stderr]     Checking thread-id v3.0.0
Dec 17 14:01:30.433 INFO [stderr]     Checking net2 v0.2.27
Dec 17 14:01:31.096 INFO [stderr]     Checking thread_local v0.3.3
Dec 17 14:01:31.531 INFO [stderr]     Checking bytes v0.4.2
Dec 17 14:01:31.624 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 17 14:01:32.096 INFO [stderr]     Checking mio v0.6.6
Dec 17 14:01:33.445 INFO [stderr]     Checking regex v0.2.1
Dec 17 14:01:37.000 INFO [stderr]     Checking tokio-io v0.1.1
Dec 17 14:01:37.660 INFO [stderr]     Checking env_logger v0.4.2
Dec 17 14:01:38.037 INFO [stderr]     Checking tokio-core v0.1.6
Dec 17 14:01:39.224 INFO [stderr]     Checking asyncho v0.1.0 (/opt/crater/workdir)
Dec 17 14:01:39.720 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 14:01:39.721 INFO [stderr]    --> src/service.rs:124:17
Dec 17 14:01:39.724 INFO [stderr]     |
Dec 17 14:01:39.724 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 17 14:01:39.724 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 14:01:39.724 INFO [stderr]     |
Dec 17 14:01:39.724 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 14:01:39.724 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 14:01:39.724 INFO [stderr] 
Dec 17 14:01:39.881 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 14:01:39.881 INFO [stderr]    --> src/service.rs:124:17
Dec 17 14:01:39.881 INFO [stderr]     |
Dec 17 14:01:39.882 INFO [stderr] 124 |                 self.spawn_connection(conn).map_err(erase);
Dec 17 14:01:39.882 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 14:01:39.882 INFO [stderr]     |
Dec 17 14:01:39.882 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 14:01:39.882 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 14:01:39.882 INFO [stderr] 
Dec 17 14:01:39.933 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.61s
Dec 17 14:01:41.072 INFO running `"docker" "inspect" "fcb2272790536e5293503f273d9e82d757e452aab6bb3792a15aa6b4fa2218d1"`
Dec 17 14:01:41.416 INFO running `"docker" "rm" "-f" "fcb2272790536e5293503f273d9e82d757e452aab6bb3792a15aa6b4fa2218d1"`
Dec 17 14:01:41.800 INFO [stdout] fcb2272790536e5293503f273d9e82d757e452aab6bb3792a15aa6b4fa2218d1